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Eagle Plastic Devices BHC-21700 Battery Holders are black in color and made of 0.3mm stainless steel nickel-plated contact material. These battery holders are manufactured using PBT+30%GF resin materials. The BHC-21700 battery holders offer a higher capacity than the 18650 batteries. These battery holders are known for their long lifespan and high-density energy. The BHC-21700 battery holders feature a 21mm diameter and 70mm length, which refers to the battery's number “21700”.
